Recent activity by BradConger9

1 answer 27 views

What is the effect of the shape and size of metal nanoparticles on their catalytic activity in the reduction of a specific organic compound?

answered 2 days ago in Materials Chemistry

1 answer 22 views

What is the optimal process for treating landfill leachate to remove contaminants and minimize its impact on groundwater quality?

asked 5 days ago in Environmental Chemistry

1 answer 22 views

What is the effect of varying pH levels on the rate of photochemical reactions, specifically in the degradation of a particular organic dye under UV light, and how does this impact the overall efficiency of the process?

asked Feb 20 in PhotoChemistry

1 answer 21 views

What is the critical micelle concentration of sodium dodecyl sulfate (SDS) in water at 25°C and how does it change with temperature?

asked Feb 19 in Surface Chemistry

1 answer 27 views

What is the effect of temperature on the adsorption of gases on solid surfaces? Compare and contrast the behavior of physisorption and chemisorption with respect to temperature dependence.

answered Feb 17 in Surface Chemistry

1 answer 32 views

How does temperature affect the rate of a chemical reaction, and what is the mechanism behind this effect according to the principles of quantum chemistry?

asked Feb 17 in Quantum Chemistry

1 answer 26 views

What is the effect of surface-active agents on the foam stability of whipped cream during the food processing industry?

asked Feb 17 in Surface Chemistry

1 answer 23 views

What is the standard electrode potential of a copper electrode if it is combined with a zinc electrode in a galvanic cell, and the measured cell potential is 1.10 V at 298 K? Given: E°(Zn²⁺/Zn) = -0.76 V and E°(Cu²⁺/Cu) = 0.34 V.

asked Feb 13 in Physical Chemistry

1 answer 32 views

How can the efficiency of the Haber process be improved in the production of ammonia for use in fertilizer production?

answered Feb 7 in Chemical engineering

1 answer 38 views

How can limited access to laboratory equipment and chemicals be overcome to encourage more hands-on experimentation in chemistry education?

answered Feb 5 in Chemical education

1 answer 33 views

How can chemistry curriculum and teacher training be improved to better prepare educators for teaching chemistry in a way that engages and inspires students?

answered Feb 4 in Chemical education

1 answer 40 views

How can chemical and biological treatments be used to reduce the environmental impact of industrial waste disposal?

asked Feb 4 in Environmental Chemistry

1 answer 34 views

Calculate the standard enthalpy change for the sublimation of iodine (I2) using the given information: The standard enthalpy of fusion of iodine is 15.52 kJ/mol and the standard enthalpy of vaporization of iodine is 41.57 kJ/mol.

answered Feb 3 in Chemical thermodynamics

1 answer 84 views

How can the computational chemistry technique of ab initio calculations be used to predict the excited state dynamics in complex molecules and materials?

asked Jan 30 in Computational Chemistry

1 answer 62 views

Calculate the enthalpy of formation of water (H2O) given the enthalpies of formation of hydrogen gas (H2) and oxygen gas (O2) are -286 kJ/mol and 0 kJ/mol, respectively.

answered Jan 23 in ThermoChemistry

1 answer 62 views

Calculate the enthalpy of adsorption of 1 mole of hydrogen gas on the surface of activated charcoal from the given data:- The heat of combustion of hydrogen gas at constant volume is -285.8 kJ/mol- The heat of combustion of hydrogen gas at constant pressure is -241.8 kJ/mol- The heat of vaporization of hydrogen gas at its boiling point (20.3 K) is 0.452 kJ/mol- The surface area of activated charcoal is 500 m²/g- The weight of activated charcoal used is 0.5 g.

asked Jan 23 in ThermoChemistry

1 answer 55 views

Calculate the corrosion current density of an iron rod having a surface area of 15 cm², immersed in an acid solution (pH=3) with a temperature of 50°C. The concentration of iron ions (Fe²⁺) in the solution is 0.1 M, and the standard reduction potential of iron is -0.44 V. The Tafel slope obtained experimentally is 0.12 V/decade. Use the Tafel equation to calculate the corrosion current density (in A/cm²) of the iron rod.

answered Jan 23 in ElectroChemistry

1 answer 60 views

Calculate the amount of energy needed to desorb 10 moles of hydrogen gas from a metal surface, given that the enthalpy of desorption is -120 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 45 views

When is social impact strongest?

asked Jan 20 in Psychology

1 answer 39 views

Who proposed the gate-control theory of pain?

answered Jan 20 in Psychology

Recent activity by BradConger9

Categories